code: def book_flight(request_id: str, *deps) -> str:
      flight_reservation_id = make_request("book_flight", request_id)
      return flight_reservation_id
  
file_path: ray/python/ray/workflow/examples/comparisons/cadence/trip_booking_workflow.py
imports: from typing import List, Tuple, Optional
  import ray
  from ray import workflow
label_desc: Use image node_id 5 for calling a global function with example usage: book_flight(request_id) and returns: flight_reservation_id